AntDesign庫限制Select組件篩選最大個數完美解決

正常：在select中加maxSelected參數即可

在Form中：通過截取value去控制option的選中個數

<Form {...formItemLayout} onSubmit={this.handleSubmit}>
        <Form.Item label="E-mail">
          {getFieldDecorator("email", {
            initialValue: ["1", "2"],
            getValueFromEvent: value => value.slice(0, 3)
          })(
            <Select
              mode="multiple"
              style={{ width: "100%" }}
              placeholder="Please select"
            >
              <Option value="1">1</Option>
              <Option value="2">2</Option>
              <Option value="3">3</Option>
              <Option value="4">4</Option>
              <Option value="5">5</Option>
            </Select>
          )}
        </Form.Item>
      </Form>